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27311000041 = 1389101233713
BaseRepresentation
bin11001011011110111…
…001100100111101001
32121111100110112220001
4121123313030213221
5421413104000131
620314013303001
71654535445553
oct313367144751
977440415801
1027311000041
1110645390616
125362494a61
132763260470
14147127a4d3
15a9ca18261
hex65bdcc9e9

27311000041 has 16 divisors (see below), whose sum is σ = 30036923280. Its totient is φ = 24679987200.

The previous prime is 27310999993. The next prime is 27311000071. The reversal of 27311000041 is 14000011372.

27311000041 is a nontrivial binomial coefficient, being equal to C(233714, 2).

It can be written as a sum of positive squares in 8 ways, for example, as 539168400 + 26771831641 = 23220^2 + 163621^2 .

It is a cyclic number.

It is not a de Polignac number, because 27311000041 - 217 = 27310868969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27310999982 and 27311000018.

It is not an unprimeable number, because it can be changed into a prime (27311000071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1 + ... + 233713.

It is an arithmetic number, because the mean of its divisors is an integer number (1877307705).

Almost surely, 227311000041 is an apocalyptic number.

27311000041 is the 233713-rd triangular number and also the 116857-th hexagonal number.

27311000041 is the 77905-th centered nonagonal number.

It is an amenable number.

27311000041 is a deficient number, since it is larger than the sum of its proper divisors (2725923239).

27311000041 is a wasteful number, since it uses less digits than its factorization.

27311000041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233916.

The product of its (nonzero) digits is 168, while the sum is 19.

The spelling of 27311000041 in words is "twenty-seven billion, three hundred eleven million, forty-one", and thus it is an aban number.

Divisors: 1 13 89 101 1157 1313 8989 116857 233713 3038269 20800457 23605013 270405941 306865169 2100846157 27311000041